16290004 has 12 divisors (see below), whose sum is σ = 29427328. Its totient is φ = 7882200.

The previous prime is 16289971. The next prime is 16290007. The reversal of 16290004 is 40009261.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16290007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65562 + ... + 65809.

Almost surely, 2^16290004 is an apocalyptic number.

It is an amenable number.

16290004 is a deficient number, since it is larger than the sum of its proper divisors (13137324).

16290004 is a wasteful number, since it uses less digits than its factorization.

16290004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131406 (or 131404 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 16290004 is about 4036.0877096515. The cubic root of 16290004 is about 253.4975289814.

Adding to 16290004 its reverse (40009261), we get a palindrome (56299265).

The spelling of 16290004 in words is "sixteen million, two hundred ninety thousand, four".